A new method of measuring the peculiar velocity power spectrum

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dc.creatorZhang, Pengjie
dc.creatorStebbins, Albert
dc.creatorJuszkiewicz, Roman
dc.creatorFeldman, Hume
dc.date2004-10-26
dc.date.accessioned2026-07-07T02:15:30Z
dc.date.available2026-07-07T02:15:30Z
dc.descriptionWe show that by directly correlating the cluster kinetic Sunyaev Zeldovich (KSZ) flux, the cluster peculiar velocity power spectrum can be measured to $\sim 10%$ accuracy by future large sky coverage KSZ surveys. This method is almost free of systemics entangled in the usual velocity inversion method. The direct correlation brings extra information of density and velocity clustering. We utilize these information to construct two indicators of the Hubble constant and comoving angular distance and propose a novel method to constrain cosmology.
dc.description4 pages, 3 figures. Submitted to ApJL
dc.identifierhttps://arxiv.org/abs/astro-ph/0410637
dc.identifierhttp://arxiv.org/abs/astro-ph/0410637
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8430
dc.subjectAstrophysics
dc.titleA new method of measuring the peculiar velocity power spectrum
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